Active · per the CBE, 16 September 2026

BOUWONDERNEMING MERTENS & ZOON

BE0439231638

Rechtspersoon Private limited company 1 establishment

BOUWONDERNEMING MERTENS & ZOON is a construction company in Laakdal. Private Limited, started on 8 December 1989, 1 establishment.

Oude Geelsebaan 103, 2431 Laakdal

Behind the company: RONNY, Albert, Jan MERTENS.

Active for

36 year, 9 months

Warning lights

Signals from the annual accounts, the CBE and the Official Gazette, each with its threshold and source. No score, no verdict.

  • Two loss years in a row NBB

    Negative result in 2024 and 2025.

Financials

Financial year 2025

BOUWONDERNEMING MERTENS & ZOON from Laakdal, company number BE0439231638, closed financial year 2025 with a result of € -76,830 after tax. For that financial year BOUWONDERNEMING MERTENS & ZOON recorded a gross margin of € -27,980 and equity of € 354,029. Compared with financial year 2024, the result moved from € -52,248 to € -76,830. The company made a loss. The company holds a healthy buffer. A strong own buffer against the debts. The most recent annual accounts were filed with the National Bank of Belgium on September 9, 2026.

What it is worth Healthy

€ 354,029

▼ 18% vs 2024

Assets minus debts, by the books. What is left if everything were sold and paid today.

Loss Caution

€ -76,830

▼ 47 % more loss than in 2024

Profit after tax over the fiscal year.

Cash in the bank

€ 66,106

▲ 28% vs 2024

Cash and bank balances on the last day of the fiscal year.

Where the profit goes Caution

Loss, nothing to pay out

Reserves fell to € 154,029.

People and assets in 2025

Vehicles and equipment

€ 40,211

▼ 26% vs 2024

Book value of vehicles, furniture and equipment.

Debts at end 2025

Bank debt ≈ 4 years to go

€ 205,455

▼ 19% vs 2024

€ 47,705 is repaid this year. At this pace the long-term loan is gone in ≈ 4 years.

Owed to suppliers

€ 140,509

▲ 49% vs 2024

Supplier invoices still open on the last day of the fiscal year.

Taxes

€ 1,801

▼ 89% vs 2024

Corporate tax and VAT still to pay. No wage debt: nothing outstanding to staff or social security.

Want to see how much further we take a dossier in the Pro version? Open the free De Lijn example and give feedback →

Key figures per fiscal year Download key figures (CSV)
2022202320242025Change 2024 → 2025
Gross margin € 87,444 € -34,824 € -11,610 € -27,980 ▼ € 16,370
Profit after taxes € 59,742 € -64,315 € -52,248 € -76,830 ▼ € 24,582
Equity € 547,422 € 483,107 € 430,859 € 354,029 ▼ 18%
Total debts € 268,068 € 232,697 € 397,116 € 397,885
Cash € 318,951 € 281,992 € 51,810 € 66,106 ▲ 28%
Land & buildings € 189,980 € 186,330 € 182,680 € 179,030 ▼ 2%
Retained profit € 347,422 € 283,107 € 230,859 € 154,029 ▼ 33%
Bank debt € 194,854 € 165,591 € 252,177 € 205,455 ▼ 19%
Balance sheet total € 815,490 € 715,804 € 827,975 € 751,914 ▼ 9%

Key figures of BOUWONDERNEMING MERTENS & ZOON, fiscal years 2022 to 2025, from the annual accounts filed with the National Bank of Belgium.Next annual account (fiscal year 2026) expected before 31 July 2027.

What happened to BOUWONDERNEMING MERTENS & ZOON?

What happened at BOUWONDERNEMING MERTENS & ZOON in recent years, according to the Belgian Official Gazette, the CBE and the National Bank:

  • New annual accounts for financial year 2025: loss of € 76,830. filed late Source: NBB ↗
  • RONNY, Albert, Jan MERTENS became a director. NBB
  • New establishment in Laakdal. KBO
  • Start of the company according to the CBE. KBO

In short

From € 59,742 profit in 2022 to € 76,830 loss in 2025.

Paid € 16,062 in corporate taxes since 2022.

Best year ever: 2022, with € 59,742 profit.

Management

RONNY, Albert, Jan MERTENS
BOUWONDERNEMING MERTENS & ZOON

Behind BOUWONDERNEMING MERTENS & ZOON is RONNY, Albert, Jan MERTENS.

See the full network in the app

Directors

According to the 2025 annual accounts

RONNY, Albert, Jan MERTENS

Director

since 1999

Establishments

Establishment units

Physical locations of this company

Registered office

Oude Geelsebaan 103

2431 Laakdal

What is an establishment unit? An establishment unit is a geographically identifiable place where activities of the enterprise are carried out.

Details

Company number
0439.231.638
VAT number
BE 0439.231.638
Registered office
Oude Geelsebaan 103, 2431 Laakdal
Names & denominations
BOUWONDERNEMING MERTENS & ZOON
Enterprise type
Rechtspersoon
Legal form
Private limited company
Legal situation
Normale toestand
Start date
8 December 1989
Peppol
Active · Active since 24 Dec 2025
Activities · NACE

Algemene bouw van residentiële gebouwen

Bouwen van individuele huizen

Ontwikkeling van residentiële bouwprojecten

Projectontwikkeling voor woningbouw

Frequently asked questions

What does BOUWONDERNEMING MERTENS & ZOON do?
BOUWONDERNEMING MERTENS & ZOON is a construction company in Laakdal. Private Limited, started on 8 December 1989, 1 establishment.
What is the address of BOUWONDERNEMING MERTENS & ZOON?
The registered office of BOUWONDERNEMING MERTENS & ZOON is located at Oude Geelsebaan 103, 2431 Laakdal.
Is BOUWONDERNEMING MERTENS & ZOON still active?
Yes. According to the CBE (16 September 2026) BOUWONDERNEMING MERTENS & ZOON is active, legal situation “Normale toestand”, started on 8 December 1989.
Is BOUWONDERNEMING MERTENS & ZOON registered on Peppol?
Yes, BOUWONDERNEMING MERTENS & ZOON is registered on the Peppol network with ID 0208:0439231638.
What is the enterprise number of BOUWONDERNEMING MERTENS & ZOON?
The enterprise number of BOUWONDERNEMING MERTENS & ZOON is BE0439231638.
When was BOUWONDERNEMING MERTENS & ZOON founded?
BOUWONDERNEMING MERTENS & ZOON was founded on 8 December 1989.